PhysicsLAB: Test Scenario: Ballistic Pendulum Scenario

Refer to the following information for the next four questions.

A 10-gram bullet is fired into a 2-kg ballistic pendulum that is initially at rest, as shown in the diagram. The bullet remains in the block after the collision and the bullet-block system rises to a maximum height of 20 cm.

How fast do the block and bullet move together immediately after the collision?

Find the initial speed of the bullet.

Is this collision considered a perfectly inelastic collision or a perfect elastic collision?

perfectly elasticperfectly inelastic

How much mechanical energy was lost when the bullet embedded in the block?